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Fix a Memory Leak

Description

Performance tests of the Check In/Out workflows show that in Poppy mod-pubsub has a memory leak. Details from https://folio-org.atlassian.net/browse/PERF-721#icft=PERF-721:

Longevity test was conducted for CICO on pcp1 (75 users, 8 hours). During this test mod-pubsub memory consumption increased from 37% to 63%.
Class taking most of the memory - "java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue". At the end of the test it occupies 95% of bytes. There is a big number of events like java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask inside the class. Number of these events at the beginning of the test - 83K, number at the end of the test - 840K.

 

Please see https://folio-org.atlassian.net/browse/PERF-721#icft=PERF-721 for more details.

CSP Request Details

None

CSP Rejection Details

None

Potential Workaround

None

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2
  • 04 Dec 2023, 12:02 PM
  • 04 Dec 2023, 12:02 PM

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JenkinsNotifications December 6, 2023 at 7:18 AM

Deployed to the Poppy bf env. Moved status to In bugfix review from status Awaiting deployment. Please proceed with the verification.

Roman Barannyk December 4, 2023 at 12:02 PM
Edited

The fix has been deployed on PTF environment and performed another 24 hours test and didn't see the memory going up any bit. Here is a full picture from both longevity tests:  The first one increased for 12+ hours to 60% but after that, and including the second test over the weekend, it did not rise anymore:

Roman Barannyk December 1, 2023 at 9:20 AM

waiting for deployment branch with the fix on PTF env and testing 

Done

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Vega

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Poppy (R2 2023) Bug Fix

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Implementation coding issue

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Created November 16, 2023 at 10:29 PM
Updated March 20, 2024 at 2:32 PM
Resolved December 4, 2023 at 12:03 PM
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